<div class="well" style="margin-top: 10px;background-color: #bdffc0;">
    <div>
        <button data-bind="click:changeToA">change to A</button>
        <button data-bind="click:changeToB">change to B</button>
    </div>
    <div data-bind="compose:{model:view,cacheViews:true,activate:false}"></div>
    <div data-bind="style:styleObj">Gen</div>
</div>
